21403804920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{53773}}^1$

素因数の和:53925

約数の個数: 128

約数和(自身を含む): 66903459840

約数和(自身を除く): 45499654920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 107, 120, 124, 155, 186, 214, 248, 310, 321, 372, 428, 465, 535, 620, 642, 744, 856, 930, 1070, 1240, 1284, 1605, 1860, 2140, 2568, 3210, 3317, 3720, 4280, 6420, 6634, 9951, 12840, 13268, 16585, 19902, 26536, 33170, 39804, 49755, 53773, 66340, 79608, 99510, 107546, 132680, 161319, 199020, 215092, 268865, 322638, 398040, 430184, 537730, 645276, 806595, 1075460, 1290552, 1613190, 1666963, 2150920, 3226380, 3333926, 5000889, 5753711, 6452760, 6667852, 8334815, 10001778, 11507422, 13335704, 16669630, 17261133, 20003556, 23014844, 25004445, 28768555, 33339260, 34522266, 40007112, 46029688, 50008890, 57537110, 66678520, 69044532, 86305665, 100017780, 115074220, 138089064, 172611330, 178365041, 200035560, 230148440, 345222660, 356730082, 535095123, 690445320, 713460164, 891825205, 1070190246, 1426920328, 1783650410, 2140380492, 2675475615, 3567300820, 4280760984, 5350951230, 7134601640, 10701902460, 21403804920]

約数ペア:

[(1, 21403804920), (2, 10701902460), (3, 7134601640), (4, 5350951230), (5, 4280760984), (6, 3567300820), (8, 2675475615), (10, 2140380492), (12, 1783650410), (15, 1426920328), (20, 1070190246), (24, 891825205), (30, 713460164), (31, 690445320), (40, 535095123), (60, 356730082), (62, 345222660), (93, 230148440), (107, 200035560), (120, 178365041), (124, 172611330), (155, 138089064), (186, 115074220), (214, 100017780), (248, 86305665), (310, 69044532), (321, 66678520), (372, 57537110), (428, 50008890), (465, 46029688), (535, 40007112), (620, 34522266), (642, 33339260), (744, 28768555), (856, 25004445), (930, 23014844), (1070, 20003556), (1240, 17261133), (1284, 16669630), (1605, 13335704), (1860, 11507422), (2140, 10001778), (2568, 8334815), (3210, 6667852), (3317, 6452760), (3720, 5753711), (4280, 5000889), (6420, 3333926), (6634, 3226380), (9951, 2150920), (12840, 1666963), (13268, 1613190), (16585, 1290552), (19902, 1075460), (26536, 806595), (33170, 645276), (39804, 537730), (49755, 430184), (53773, 398040), (66340, 322638), (79608, 268865), (99510, 215092), (107546, 199020), (132680, 161319)]